Merge pull request #15 from Earlopain/github-actions

Move to GitHub actions

.github/workflows/main.yml

@@ -0,0 +1,38 @@
+name: CI
+
+on:
+  pull_request:
+  push:
+    branches:
+      - master
+
+concurrency:
+  group: ${{ github.workflow }}-${{ github.head_ref || github.run_id }}
+  cancel-in-progress: true
+
+jobs:
+  main:
+    runs-on: ubuntu-latest
+    strategy:
+      fail-fast: false
+      matrix:
+        ruby:
+          - "2.4"
+          - "2.5"
+          - "2.6"
+          - "2.7"
+          - "3.0"
+          - "3.1"
+          - "3.2"
+          - "3.3"
+          - ruby-head
+        task:
+          - spec
+    name: Ruby ${{ matrix.ruby }}
+    steps:
+      - uses: actions/checkout@v4
+      - uses: ruby/setup-ruby@v1
+        with:
+          ruby-version: ${{ matrix.ruby }}
+          bundler-cache: true
+      - run: bundle exec rake

spec/rubocop/cop/rubycw/rubycw_spec.rb

@@ -2,9 +2,15 @@
 
 RSpec.describe RuboCop::Cop::Rubycw::Rubycw, :config do
   it 'registers an offense with ruby -cw' do
+    literal_unused_warning = if RUBY_VERSION < "3.3"
+      "unused literal ignored"
+    else
+      "possibly useless use of a literal in void context"
+    end
+
     expect_offense(<<~RUBY)
       1
-      ^ unused literal ignored
+      ^ #{literal_unused_warning}
       p 1
 
       p if /re/